package blake256

var sigma = [][16]uint8{
  { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
  {14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
  {11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
  { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
  { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
  { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
  {12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
  {13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
  { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
  {10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 },
  { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
  {14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
  {11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
  { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
  { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
  { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
}

var u256 = [16]uint32{
  0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
  0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
  0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
  0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
}

var u512 = [16]uint64{
  0x243f6a8885a308d3, 0x13198a2e03707344,
  0xa4093822299f31d0, 0x082efa98ec4e6c89,
  0x452821e638d01377, 0xbe5466cf34e90c6c,
  0xc0ac29b7c97c50dd, 0x3f84d5b5b5470917,
  0x9216d5d98979fb1b, 0xd1310ba698dfb5ac,
  0x2ffd72dbd01adfb7, 0xb8e1afed6a267e96,
  0xba7c9045f12c7f99, 0x24a19947b3916cf7,
  0x0801f2e2858efc16, 0x636920d871574e69,
}

var (
    iv256 = [8]uint32{
        0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
        0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19,
    }

    iv224 = [8]uint32{
        0xC1059ED8, 0x367CD507, 0x3070DD17, 0xF70E5939,
        0xFFC00B31, 0x68581511, 0x64F98FA7, 0xBEFA4FA4,
    }

    pad = [64]byte{0x80}
)
